Some computers at a certain company are Brand $X$ and the rest are Brand $Y.$ If the ratio of the number of Brand

Some computers at a certain company are Brand $X$ and the rest are Brand $Y.$ If the ratio of the number of Brand $Y$ computers to the number of Brand $X$ computers at the company is $5$ to $6,$ how many of the computers are Brand $Y?$

(1) There are $80$ more Brand $X$ computers than Brand $Y$ computers at the company.
(2) There is a total of $880$ computers at the company.

Answer: D

Source: GMAT Prep

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